scanf
- Updated2023-02-21
- 2 minute(s) read
scanf
int scanf (const char formatString[], ...);
Purpose
Reads input from standard input and converts it into a series of values according to the specifications of the formatting string.
Parameters
| Input | ||||
| Name | Type | Description | ||
| formatString | const char [] |
Contains the format string that specifies the admissible input sequences and how they are converted for
assignment. Use standard ANSI C format specifiers. If insufficient arguments exist for the format, the behavior is undefined. If the format is exhausted
while arguments remain, the excess arguments are evaluated but are otherwise ignored.
|
||
| Output | ||||
| Name | Type | Description | ||
| target_s | ... | Contains a pointer to the variable that receives the converted input from the standard input. If there are multiple arguments, you must separate the arguments by commas. | ||
Return Value
| Name | Type | Description |
| ItemsFormatted | int | Contains the number of parameters successfully matched and formatted or EOF (-1) in case of an invalid input. This value might be less than the number of parameters you pass in for matching in the following cases:
|
Additional Information
Library: ANSI C Library
Include file: ansi_c.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later
Example
Refer to userint\standardio.cws for an example of using the scanf function.